How to Convert JPG or PNG Images to PDF for Free

When you need images as a PDF

Scanned receipts, whiteboard photos, ID documents and screenshot collections are usually easier to store, print and share as a single PDF rather than a folder of loose image files. A PDF keeps everything in one attachment, preserves order and prints with predictable page sizes.

The Images to PDF tool accepts JPG, JPEG, PNG, WebP, BMP, GIF and TIFF files, and it converts one or many images into a single document. Everything happens in your browser.

Step-by-step

1. Open the Images to PDF tool and select or drag in your image files.
2. Reorder images if needed - the order you set becomes the page order in the final PDF.
3. Choose a page size. A4 and Letter are the most common choices for printing; auto-size matches the page to each image instead.
4. Pick the orientation (portrait or landscape) that suits most of your images.
5. Choose a fit mode: fit-width and fit-height scale the image to the page while preserving its aspect ratio, while fill and stretch prioritize covering the page.
6. Set a margin preset, or use a custom margin if you need precise spacing for printing or binding.
7. Optionally enable page numbers, which print a small "1 / N" label at the bottom of every page - useful for multi-page scans that need to stay in order after printing.
8. Click Convert. The tool builds the PDF locally and takes you to a result screen with a download button.

Choosing the right fit mode

• Fit-width produces the most consistent-looking document when your images have different sizes, because every page aligns to the same width.
• Fit-height works well for full-page screenshots and tall documents.
• Fill crops the image edges to cover the whole page - avoid it when the image contains important content near the edges.
• Stretch distorts the image to exactly match the page size and is best limited to backgrounds or decorative images.

If you are unsure, start with fit-width and a small margin, then preview before converting.

Tips for printing

For ID documents or receipts you plan to print, A4 with a small margin keeps content away from printer edge cutoffs. Printer margins are not automatic: many printers cannot print to the very edge of the page, so images placed flush to the border may lose a few millimeters. A 5-10 mm margin avoids that problem.

Page numbers are worth enabling on multi-page scans that must stay in a fixed order after printing - if a stack of loose sheets gets shuffled, the printed numbers put them back in sequence.

Converting a single image

You can convert a single image to PDF the same way - just select one file instead of several. This is handy for turning a photo of a document into a clean, shareable PDF for email.

The opposite direction

If your images first need to be pulled out of an existing PDF - for a presentation or a social post - use the PDF to JPG tool to render specific pages as image files. Deciding between sharing a PDF or individual images is a real question; our comparison of PDF vs JPG for sharing documents covers when each format is the better choice.

Check the output size

A PDF built from full-resolution photos can be surprisingly large. If the result is heavier than you want, re-run the conversion with fit settings that scale images down, or run Compress PDF on the finished document afterward to re-encode the embedded images at a friendlier size.

Common mistakes to avoid

• Mixing fit modes across images. Switching between fit-width and fit-height for different images makes pages inconsistent. Pick one mode for the whole set unless a specific image genuinely needs different treatment.
• Choosing fill for documents with edge content. Fill crops the image, and cropping a scanned form can cut off fields you need.
• Forgetting the margin. Without a margin, content sits flush to the paper edge and can be clipped by printers.
• Assuming the image order is final. The order you see is the order that prints - reorder first, convert second.

When to flatten images vs keep them text

An image-to-PDF conversion always embeds the image as a page. That means the text inside a photo of a text page is not searchable. If searchable text is the goal, you have two better routes: scan with OCR (see our guide to OCR for scanned PDFs), or convert from the original document instead of a photo of it.

When the images themselves are the point - receipts, photos, screenshots - converting them to PDF is the correct choice and nothing is lost. Knowing which case you are in decides which tool solves the problem.